teaseThe boys teased her mercilessly on the playground.
jokeI've lost your passport. Only joking!
kidinformalI'm sorry, I forgot to get you a birthday present. Just kidding!
pull someone's leginformalIs that really your car or are you pulling my leg?
ribHis brothers were ribbing him about his new girlfriend.
make fun ofThe other children made fun of him because he wore glasses.
ridiculeShe didn't say what she thought for fear of being ridiculed.